PT99935A - Processo e aparelho para a gravacao e reproducao de televisao utilizando um filtro espacial - Google Patents
Processo e aparelho para a gravacao e reproducao de televisao utilizando um filtro espacial Download PDFInfo
- Publication number
- PT99935A PT99935A PT9993591A PT9993591A PT99935A PT 99935 A PT99935 A PT 99935A PT 9993591 A PT9993591 A PT 9993591A PT 9993591 A PT9993591 A PT 9993591A PT 99935 A PT99935 A PT 99935A
- Authority
- PT
- Portugal
- Prior art keywords
- filter
- region
- diagonal
- recording
- reproduction
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 19
- 230000002238 attenuated effect Effects 0.000 claims description 12
- 230000003595 spectral effect Effects 0.000 claims description 12
- 230000017105 transposition Effects 0.000 claims description 12
- 238000011045 prefiltration Methods 0.000 claims description 10
- 238000001228 spectrum Methods 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 3
- 238000010348 incorporation Methods 0.000 claims 1
- 230000002452 interceptive effect Effects 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 230000036314 physical performance Effects 0.000 claims 1
- 230000002441 reversible effect Effects 0.000 description 3
- 230000001850 reproductive effect Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N5/926—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation
- H04N5/9261—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback by pulse code modulation involving data reduction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
- H04N7/122—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal involving expansion and subsequent compression of a signal segment, e.g. a frame, a line
- H04N7/125—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal involving expansion and subsequent compression of a signal segment, e.g. a frame, a line the signal segment being a picture element
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Signal Processing For Recording (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65702991A | 1991-02-20 | 1991-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PT99935A true PT99935A (pt) | 1993-11-30 |
Family
ID=24635564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT9993591A PT99935A (pt) | 1991-02-20 | 1991-12-26 | Processo e aparelho para a gravacao e reproducao de televisao utilizando um filtro espacial |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0499715A3 (enExample) |
| JP (1) | JP2562244B2 (enExample) |
| CN (1) | CN1064383A (enExample) |
| CA (1) | CA2058105C (enExample) |
| PT (1) | PT99935A (enExample) |
| TW (1) | TW208106B (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5355227A (en) * | 1992-02-07 | 1994-10-11 | Samsung Electronics Co., Ltd. | Linear-phase filtering for playback of recorded folded-spectrum video |
| KR950011521B1 (ko) * | 1992-03-20 | 1995-10-05 | 삼성전자주식회사 | 영상신호 중첩 및 펼침회로 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0163512B1 (en) * | 1984-05-29 | 1992-08-19 | General Electric Company | Spatial-temporal frequency interleaved processing of a television signal |
| JPH0748848B2 (ja) * | 1986-04-24 | 1995-05-24 | 日本放送協会 | テレビジヨン信号多重方式 |
| JPS62274994A (ja) * | 1986-05-23 | 1987-11-28 | Nippon Hoso Kyokai <Nhk> | 画像信号の帯域圧縮方式 |
| JPH0748849B2 (ja) * | 1986-07-15 | 1995-05-24 | 日本放送協会 | テレビジョン信号帯域圧縮装置 |
| JPS63215185A (ja) * | 1987-03-03 | 1988-09-07 | Matsushita Electric Ind Co Ltd | サブナイキスト符号化装置および復号化装置 |
| AU4742090A (en) * | 1988-11-16 | 1990-06-12 | Scientific-Atlanta, Inc. | High definition b-mac television signal transmission system |
| DK0404238T3 (da) * | 1989-06-20 | 1996-08-26 | Philips Electronics Nv | Signalbehandlingsindretninger før og efter overførsel og/eller lagring med datakomprimering, og fremgangsmåde til overførsel og/eller lagring af signaler med sådanne indretninger |
-
1991
- 1991-11-08 TW TW80108836A patent/TW208106B/zh active
- 1991-12-09 JP JP3324668A patent/JP2562244B2/ja not_active Expired - Fee Related
- 1991-12-19 CA CA 2058105 patent/CA2058105C/en not_active Expired - Fee Related
- 1991-12-20 EP EP19910122016 patent/EP0499715A3/en not_active Withdrawn
- 1991-12-26 PT PT9993591A patent/PT99935A/pt not_active Application Discontinuation
-
1992
- 1992-02-08 CN CN 92100809 patent/CN1064383A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04345286A (ja) | 1992-12-01 |
| CA2058105C (en) | 2000-03-14 |
| EP0499715A2 (en) | 1992-08-26 |
| EP0499715A3 (en) | 1993-03-31 |
| CA2058105A1 (en) | 1992-08-21 |
| TW208106B (enExample) | 1993-06-21 |
| CN1064383A (zh) | 1992-09-09 |
| JP2562244B2 (ja) | 1996-12-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FC3A | Refusal |
Effective date: 19990120 |